500 Exp isn't that much either...
If you want to level up quickly in CF EU, theree's no better way then to boost in Team Deathmatch, U can use this to get rank ups but also the eblems to unlock, like assasin. All you've gotta do is posting a request here, try to get some people to want to boost with you, have some other people in the other team (not active but still doing something, so that they won't get kicked by the server due to idleing) Put on a time of 12 mins (if you're playing with alot of people so that there will be no score limit) Make the game unable to join ofcourse, and every man boosts upon another. If you post a request, you'll certainly get some responses.
500 Exp isn't that much either...